>> config KEXEC>> bool "kexec system call (EXPERIMENTAL)">> - depends on EXPERIMENTAL>> + depends on EXPERIMENTAL && !X86_XEN>> help>> kexec is a system call that implements the ability to shutdown >> your>> current kernel, and to start another kernel. It is like a reboot>> hmmm why is kexec incompatible with xen? Don't you want to support > crash> dumps from guests?

There are kexec patches for Xen which haven't yet been merged into our tree. Even without that we can take coredumps of guests from the control VM, without the guest's active involvement.